US2651623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized organic compositions
Assignee: Ethyl Corp
•
Filing: 1953-07-27
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Granted: 1953-09-08
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Expires: 1973-07-27
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Hill
- 👤 Pree David O De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/21; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AN ELASTOMERIC FORMULATION CONTAINING A RUBBER-LIKE OLEFIN-CONTAINING HYDROCARBON POLYMERIC ELASTOMER NORMALLY SUSCEPTIBLE TO ATMOSPHERIC DETERIORATION AND CONTAINING AS AN ANTIOXIDANT INGREDIENT, IN QUANTITY SUFFICIENT TO INHIBIT SUCH DETERIORATION, A SUBSTITUTED UREA WHEREIN AT LEAST ONE OF THE NITROGEN ATOMS IS SUBSTITUTED WITH A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXYPHENYL, AMIINOPHENYL, AND ALKYLAMINOPHENYL, AND THE OTHER NITROGEN ATOM IS SUBSTITUTED WITH AN ARYL RADICAL.
Claim 2
Dependent Claim
65 words
AN ELASTOMERIC FORMULATION CONTAINING A RUBBER-LIKE OLEFIN-CONTAINING HYDROCARBON POLYMERIC ELASTOMER NORMALLY SUSCEPTIBLE TO ATMOSPHERIC DETERIORATION AND CONTAINING AS AN ANTIOXIDANT INGREDIENT, IN QUANTITY SUFFICIENT TO INHIBIT SUCH DETERIORATION, A SUBSTITUTED UREA WHEREIN AT LEAST ONE OF THE NITROGEN ATOMS IS SUBSTITUTED WITH A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXYPHENYL, AMIINOPHENYL, AND ALKYLAMINOPHENYL, AND THE OTHER NITROGEN ATOM IS SUBSTITUTED WITH AN ARYL RADICAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |